please check at
Maryland Transit Administration Home Page
to check with light rails, bus routes or subway.
Metro runs from Owing mills to JHU, while light rail runs from Hunt Valley down to Glen Burnie which is North to South..bus route is everywhere. Bus route has commuter or express which is faster also the normal one. Check with the routes.
If you want to live in the city, Patterson Park, Canton, Highland Town, or maybe Mount Vernon might be your choice
THere are plenty of option to live in the county. It really depends what's yr budget? Baltimore County School is ok. City school is really hit or miss but private school in the city is decent. Howard county school is good. Then again, whatever school your kid goes to..really depends on him/her if she/he wants to work hard..
I cant help you on the school part yet because my kid is still too young.
Anyway, welcome to MD! Hope you like your stay here. Enjoy!